Refrigerating unit



4 Sheets-Sheet l w W 0 w z .6

G. T. SMILEY ET AL REFRIGERATING UNIT Filed Oct. 22, 1928 Jan. 13, 1931.

Jan. 13, E931. G. T. SMILEY ET AL 1,783,599

REFRIGERATING UNIT Filed Oct. 22. 1928 4 Sheets-Sheet 2 E0 I h E g fn'uerztord fdm/ye $2 Attorney Jan. 33, 1931. s. T. SMILEY ET AL. 1,788,599

REFRIGERATING UNIT Filed Oct. 22, 1928 4 Sheets-Sheet 3 Inventan ff I? (Tm/{e}, W22 Ofidc Attornqy Jan. 33, 19%.

Q. T. SMHLEY ET AL REFRIGERATING UNIT Filed Oct. 22, 1928 4 Sheets-Sheet 4 Patented Jan. 13, 193i umrso STATES PATENT OFFICE GEORGE '1. AND WALTER B. OESE, OF HOUSTON, TEXAS maremrme Um I Application filed October 22, 1928. Serial No. 814,179.

The present invention relates to refrigerating units and more particularly to devices of this character em' loyin the use of a plurality of superpose flues aving a refrigera ating coil associated therewith and through the action thereof to cause acirculation of' the air within the compartment within which the unit is mounted whereby to subject the air to the cooling action of said coils.

An im or'tant object of the invention is to provi e a refrigerating unit of this character adapted for use for general household purposes as well as for cooling relatively arge enclosed areas, such as theatres and the commercial places. A still further ob ect is to provide a refrigcrating unit of this character of an efficient and practical construction which is inexpens1ve to manufacture and maintain in operation and otherwise well adapted tothe pur poses for which the same is intended.

Other objects and advantages reside in the special construction, a combination and arrangement of the various elements forming the invention as more fully hereinafterdeance with my invention in end elevation and mounted in position therein,

' Fi re 2 is a vertical longitudinal sectiona view through the unit.

Z Figure 3 is an end elevational view of one of the supporting legs for the unit, with parts broken away and shown in section,

Figure 4 is a transverse sectional view through one of said supporting legs,

Fi ure 5 is a bottom plan view of one of the p ate and coil sections provided for formin the flues of the unit,

igure 6 is a perspective view of a modified type of unit formed of a series of spaced apart shallow brine tanks, having the refrig crating coil arranged in each of said tanks,

Figure 7 is a similar view of a further modlike, packing plants and other'public and take ified form of the invention dispensin with. the use of. the supporting legs and ormed wiih the flue plates and coils cast integrally, an v Figure '8 is a perspective view of one of the supportmg brackets for the outer edges of the flue plates used with the form of invention illustrated in Figures 1 and 20f the drawing; v -Referring-now to the drawing in detail, the invention comprises a refrigerating unit for cooling rooms or compartments, of any size or shape, for the purpose of illustration such room or compartment being indicated generally at 5. a

A refrigkerating unit is preferably sup ported in t e upper portion of said. room or compartment and comprises a refrigerant feed boiler composed of a pair of vertically arranged space parallel legs 6 of hollow formation and connected at their upper ends by a horizontally disposed head 7. The head 7 is likewise of a hollow formation so as to permit the free circulation of the refrigerant contained in the legs and the head throughout the entire interior portion thereof.

At one end of the head 7 is formed an inort 8 and at one side of the head is also ormed a hollow boss 9 constituting a I discharge port for the head and with which is attached a discharge pipe 10 for returning the refrigerant to the compressor unit (not shown) of a typegenerally employed in an apparatus of this character. Suitable automatic control valves (not shown) of a type well known in the art may be fitted in the intake and discharge parts to regulate the admission and discharge of the refrigerant into and out of the boiler.

The boiler may be suspended from the ceiling 11 of the room or compartment by means of hangers or straps 12. Openings 13 are arranged at vertically spaced intervals in each of the legs 6 within which the ends of coiled pipes 14 are fitted, the opposite ends of said pipe communicating with the respective legs.

Each side of the legs may be provided with a series of the coil pipe 14:, as clearly illustrated in Figure 1" of the drawing, or if do thereof.

sired the pipe may depend from only one side The coil pipes 14 and their sections immediately adjacent the legs extended outwardly there rom and provide supports for a series of flue plates 15 arranged on the upper edges of said coil pipes and disposed in parallel relation with respect to each other wlhereby to form fiues between a pair of said ates.

The outer ends of the pipes 14 and plates 15 are inclined upwardly and are supported by brackets 16 extending vertically along the outer edge of the plate and-inwardly above the uppermost of said plates for attachment at their upper ends to the strap or hanger 12.

At spaced intervals in the length of the bracket 16 are formed oifset portions 17 forming grooves at their inner faces for receiving the outer edges of the plate 15- and thus provide a positive means of keeping the plates for retaining the outer ends thereof in uniformly spaced relation with respect to each other.

The intermediate portion of the coil pipes 14 may be bent angularly as shown at 18 on a horizontal plane with respect to the plate 15, or may be twisted or turned in any desired manner to increasethe circulating-area of the fluid passing through said pipe.

An eificient and ractical manner of arranging the coil pipe 14 is illustrated in Figure 5 of the drawing. It is to be understood that the pipes 14 and plates 15 may be constructed separately and assembled in any desired manner upon the units, or may be cast with each other as a unit as illustrated in Figure 7 of the drawing, or if desired the pipes or coils may be cast within a shallow tank of a type indicated at 19 in Figure 6 of the drawin v When the ues are formed from a series of spaced tanks as illustrated in Figure 6 of the drawing, the ends of the ipe 14 extend through one of the walls of t e tank for attachment to the openings 13'of the boiler leg and either the tank may be filled with a refrigerating agent, such as brine or the like. For this purpose filler caps 2Q are provided for each of the tanks.

The inner ends of the tank may be soldered or secured'in any desired manner to the sides of the legs 6 so that the same will be rigidly attached'in position thereto.' Although the tanks 19 are shown as extending at right angles to the supporting legs, it is to be understood that the same may, if desired, be inclined upwardly and outwardly in the same manner as the plates 15.

In the form of the invention illustrated in Figure 7 of the drawing, the boiler composed of the legs 6 and head 7 may be dispensed with and the connection 21 provided for attaching the coil to the refrigerant device. h

In this form of the invention it is desirable to attach an expansion valve 22 to the connection 21. Furthermore in this form of the invention the plates 15 and associated coils 14 are shown asbeing cast integrally,

the plates 15 are supported in spaced parallel relation by slip joints 23 disposed at. each corner of the plates and having connection through theplate with the adjacent coil 14 so as to connect the refrigerant conduits in preferably at the corner of the unit opposite from the intake connection 21.

The unit as illustrated in Figure 7 of the drawings may be suspended or supported in any deslred manner within the room or compartment with one edge thereof in an upwardly inclined position for the pur ose of facilitating the circulation of the air t rough the flues formed by the plates and coils.

It is obvious t at our invention is susceptible to various changes and modifications in construction without departing from the spirit of the invention or the scope of the. appended claims, and we accordingly claim all such forms of the device to which we are entitled.

Having thus'described our invention, what we claim as new is:

1. A refrigerating unit comprising a hollow inverted U-shaped element having intake and discharge ports and a plurality of vertically spaced refrigerant conduits communi cating at their opposite ends with the respective legs of the inverted U-shaped elements.

2. A refrigerating unit comprising a hollow inverted U-shaped element having-intake and discharge ports, a plurality of vertically spaced refrigerant conduits having their opposite ends communicating with the respective legs of the said inverted U-shaped elements, and bafiies associated with said refrigerant conduit, and relatively spaced to define flue passages between adjacent bafiies.

3. A refrigerating unit comprising a hollow inverted U-shaped element having intake and discharge ports, a series of refrigerant conduits extending laterally from the respective opposite sides of the legs of the inverted being of hollow construction .to provide abrine receiving tank.

In testimony whereof we afiix our signatures.

. GEORGE T. SMILEY. WALTER R. OHSE. 

